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1,3a,6,8a-Tetrahydro-1,6-ethenoazulene is a chemical compound belonging to the azulene family, characterized by a unique seven-membered ring structure with alternating double bonds. 1,3a,6,8a-Tetrahydro-1,6-ethenoazulene is a reduced form of azulene, containing four hydrogen atoms attached to the carbon atoms, which results in a more stable and less reactive molecule compared to its parent compound. The presence of the etheno group (a vinyl group) at positions 1 and 6 further distinguishes it from other azulene derivatives. This chemical is of interest in organic chemistry and materials science due to its potential applications in the synthesis of various compounds and its unique electronic properties.

15991-78-3

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15991-78-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 15991-78-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,9,9 and 1 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 15991-78:
(7*1)+(6*5)+(5*9)+(4*9)+(3*1)+(2*7)+(1*8)=143
143 % 10 = 3
So 15991-78-3 is a valid CAS Registry Number.

15991-78-3Downstream Products

15991-78-3Relevant academic research and scientific papers

C12H12 interconversions: Two non-pyrolytic syntheses of tricyclo[5.3.2.04,8]dodeca-2,5,9,11-tetraene

Erden, Ihsan,Gleason, Cindy J.

, p. 284 - 286 (2018)

Herein, we describe two independent and non-pyrolytic syntheses of an important C12H12 hydrocarbon which had been prepared previously by gas phase thermolysis of compound 6. The first method is based on an unusual dipolar cycloaddition of dichloroketene onto bullvalene. After reductive dechlorination, a Shapiro-Heath reaction of the tosylhydrazone gave the title compound. Alternatively, compound 13 is also obtained from its isomer 6 by a Ag+ catalyzed reaction.

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